Display screen or portion thereof with icon



FIG. 1 is a front view of an icon for a portion of a display screen showing my new design; and,

FIG. 2 is a front view of a second embodiment thereof.

In the drawings, dot-dash broken lines show the boundaries of the claim. The evenly spaced dash-dash broken lines shows an display screen or portion thereof with icon that forms no part of the claimed design. 

CLAIM The ornamental design for an display screen or portion thereof with icon, as shown and described. 